An Introduction to C Programming Language

Intro

C is the famous programming language designed to develop system application program.

IntroIt is known as the starting of

every programming language all the basics of a program language starts from C language.

C is known as general purpose procedural programming language.

HistoryDeveloped by M. Dennis

Ritchie at the Bell laboratories in the year of 1972.

C is known as high level language because it has the power of a lower level language and easy syntax like high level language.

Why C used as a professional programming language?

Easy to learnIt’s a structured programming

language

Why C used as a professional programming language?

Can handle low level programsCompiled code can be used in

different computers

Features of C

C is a robust languageC is a highly portable language

means once compiled; the code can be run in any computer.

What is Compiler?

Compiler is a computer program that transforms the human written language into machine level language.

What is Compiler?

In general words computer takes the code written by you and converts it into binary code.

Structure & Syntax of a C Program

#include<stdio.h>#include<conio.h>void Main()clrscr();{Printf(“my first C program”);}

Description of Code:-

#- Prerocessor of program

Include-Include is a keyword

Description of Code:-

Stdio.h-Standard input/output header file

Conio.h-Console input/output header file

Description of Code:-

Void-is a keyword that collects the garbage value

Main()- main() identifies starting of the program execution

Description of Code:-

Clrscr()- To clear the console screen

{, }-Group all statements together

Printf()-It is a function to print the output on screen.

C Data types

Data type of C language mostly divided into 5 major types

int, char, float, double, void

C Data types

int char float

void double

C Data types

Int –Used to identify an integer valueChar- Used to identify a characterFloat- Used to identify floating point

typeDouble- Used to identify floating

point typeVoid- denotes to type with garbage

value

Variable:-

Variable is a stored data memory allocated to use it in future and we can change the value too.

Variable:-

Syntax- type variable name;

Ex- int a, b, c;

Explanation of Example

Int-Data type

A, b, c variables

Explanation of Example

Int-Data type

A, b, c variables

;-Identifies the end of statement.

End of Slide

This is a simple introduction to C basic that will be elaborated in further classes. If you want to be one of the programming professional then please visit our website for further details about C demo classes and new session.

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